error:(-215:Assertion failed) size.width0 && size.height0 in function 'cv::imshow' SOLVED in opencv

Thanks a lot!

Thanks !

It was very helpful and I improved my code a lot. Thank you so much!

my code runs when using the vscode terminal but not the computers terminal and i get this error"error: (-215:Assertion failed) size.width>0 && size.height>0 "

Thanks